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by chwe
Mon Aug 27, 2018 5:10 pm
Forum: General discussion
Topic: Is it really true, that the RPi runs faster when booting from a good USB Stick?
Replies: 31
Views: 4996

Re: Is it really true, that the RPi runs faster when booting from a good USB Stick?

Is it really true, that the RPi runs faster when booting from a good USB Stick? No. The Pi has as many CPU cores as it has and it executes code as fast as it does. No matter what storage is attached or how fast that can be accessed. Of course different storage media will have different read/write s...
by chwe
Fri Aug 24, 2018 6:14 pm
Forum: General discussion
Topic: inconsistencies in the documentation
Replies: 8
Views: 682

Re: inconsistencies in the documentation

It comes down to the fact you are reporting an issue in the wrong place. There is no guarantee that forums posts will be read by the requisite person, whereas I guarantee that the GitHub issue will be. c'mon.. :D you do fixes for the documentation, you read it - problem solved... I don't need a gua...
by chwe
Fri Aug 24, 2018 5:05 pm
Forum: General discussion
Topic: inconsistencies in the documentation
Replies: 8
Views: 682

Re: inconsistencies in the documentation

Actually, no, I don't really understand. All the docs are in github. If there is a problem with the docs, then the GitHub repo is the correct place to report the issue. There is also the opportunity to create your own fix and send it as a PR. Well I can open a issue copy paste the same stuff I wrot...
by chwe
Fri Aug 24, 2018 4:12 pm
Forum: General discussion
Topic: Is it really true, that the RPi runs faster when booting from a good USB Stick?
Replies: 31
Views: 4996

Re: Is it really true, that the RPi runs faster when booting from a good USB Stick?

I though this has to do with the fact that SSDs and rotating harddisks have much better random I/O performance ? ghans HDDs normally perform really bad when it comes to random IO.. A good SSD (even when connected over USB2 with a good SATA/USB bridge) should clearly outperform every SD-Card. For th...
by chwe
Fri Aug 24, 2018 3:00 pm
Forum: General discussion
Topic: inconsistencies in the documentation
Replies: 8
Views: 682

Re: inconsistencies in the documentation

And that is not difficult, just fork https://github.com/raspberrypi/documentation , commit and push your changes, and do a pull request. I do know how to fork and send PRs to projects but as soon as https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=219358&start=50#p1348677 was closed I opened...
by chwe
Thu Aug 23, 2018 4:48 pm
Forum: General discussion
Topic: inconsistencies in the documentation
Replies: 8
Views: 682

inconsistencies in the documentation

This discussion was IMO closed to early here: https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=219358&start=50#p1348677 https://www.raspberrypi.org/documentation/hardware/raspberrypi/frequency-management.md first: MEASURING TEMPERATURE Due to the architecture of the SoCs used on the Raspberry...
by chwe
Sat Aug 04, 2018 12:33 am
Forum: Networking and servers
Topic: Connect multiple raspberry pi's without internet
Replies: 4
Views: 422

Re: Connect multiple raspberry pi's without internet

set wifi of one pi into AP mode and let the others connect to it? Don't know how many open connections the Pi's wifi chip can handle when in AP mode. Probably everyone will have a bad ping (latency to the game) expect the one whose Pi sets up the AP.
by chwe
Wed Aug 01, 2018 7:41 pm
Forum: General discussion
Topic: RPI 3B+ reports incorrect clockspeed. Video
Replies: 60
Views: 4405

Re: RPI 3B+ lies about it's clockspeed. Video

If you measure your Raspberries in "MIPS per square centimetre" you'll be amazed at how powerful your SBC computer is. It's processor power way outstrips the first mainframes (the size of two football fields) I worked on in 1981 (although mainframes always win on I/O throughput because of Gene Amda...
by chwe
Wed Aug 01, 2018 5:23 pm
Forum: General discussion
Topic: RPI 3B+ reports incorrect clockspeed. Video
Replies: 60
Views: 4405

Re: RPI 3B+ lies about it's clockspeed. Video

What you have to consider is what in your humble opinion is wrong may not be others humble opinion. Hopefully not! What a boring world when everybody would have the same opinion.... :lol: IMO your goal should be to find a way which fits best for your user-base. Whereas I can decide if this acceptab...
by chwe
Wed Aug 01, 2018 2:48 pm
Forum: General discussion
Topic: RPI 3B+ reports incorrect clockspeed. Video
Replies: 60
Views: 4405

Re: RPI 3B+ lies about it's clockspeed. Video

Actually this isn;t technically a production error, but variations with chips from a supplier. The production was fine! One could argue that the QC after production should have found the fault, but that actually quite difficult to do. AFAIUI the chip supplier may have changed their binning procedur...
by chwe
Wed Aug 01, 2018 2:06 pm
Forum: General discussion
Topic: Why must the raspberrypi be so proprietary?
Replies: 41
Views: 2716

Re: Why must the raspberrypi be so proprietary?

So why do people think that we might drop support for VC4 (which I think was the one line precis of your post)? We have been selling Pi for 5 years, and every single one of the boards we have sold still works with the *current* Raspbian. We have spent a lot of time ensuring backwards compatibility....
by chwe
Wed Aug 01, 2018 12:18 pm
Forum: General discussion
Topic: RPI 3B+ reports incorrect clockspeed. Video
Replies: 60
Views: 4405

Re: RPI 3B+ lies about it's clockspeed. Video

I'm not sure how easy it is to fix, not my area. We try and make sure that as much of the Pi specific code get upstreamed - this makes maintenance much easier, and means easy access to the source for everyone. However, getting stuff accepted can be nightmarish, and can take a lot of time even for a...
by chwe
Wed Aug 01, 2018 3:17 am
Forum: General discussion
Topic: Why must the raspberrypi be so proprietary?
Replies: 41
Views: 2716

Re: Why must the raspberrypi be so proprietary?

I don't think there is a completely Open Source GPU design that is actually in mass production? The VC4 is the closest to being openly documented. there you go: https://nullr0ute.com/2017/09/the-state-of-open-source-accelerated-graphics-on-arm-devices/ I've in mind that there's a fosdem talk (2017 ...
by chwe
Tue Jul 31, 2018 8:54 pm
Forum: General discussion
Topic: Recommendation for USB to SATA Adapter
Replies: 7
Views: 5806

Re: Recommendation for USB to SATA Adapter

Last weekend, I hooked a "Geekworm X820" with an "AMD Radeon 128G SSD" up to a new 3B+ and it simply works great! can you look which SATA-USB bridge chip is populated on that board? I didn't spot a proper description of this board. But one good point I forgot, if your SATA/USB bridge powers the SSD...
by chwe
Tue Jul 31, 2018 6:12 pm
Forum: General discussion
Topic: Recommendation for USB to SATA Adapter
Replies: 7
Views: 5806

Re: Recommendation for USB to SATA Adapter

I would go for a JMicron JMS578 based one. They get firmware updates and work without issues. They allow basic S.M.A.R.T. functions (to monitor the disc-health of your SSD) and probably in the future trim too. Can't say if it will work perfectly with your RPi cause my JMS578 is soldered directly to ...
by chwe
Tue Jul 31, 2018 3:28 pm
Forum: General discussion
Topic: RPI 3B+ reports incorrect clockspeed. Video
Replies: 60
Views: 4405

Re: RPI 3B+ lies about it's clockspeed. Video

AIUI, the behaviour comes from a problem in the upstream driver which is responsible for reporting the clock rate, but I can't find a reference right now. Dom or Phil would be best to comment, since they're know exactly what the issue is. so it's an upstream issue when 'more or less' every other SB...

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